body {
    background: #35dc9b;
    background: linear-gradient(to bottom, #35dc9b, #3857af);
    display: flex;
    flex-direction: column;
    flex-grow: 0;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

h1 {
    margin: 0 auto 40px;
    color: #fff;
    font: 20px Helvetica;
    text-transform: uppercase;
    letter-spacing: 3px;
}

form {
    label {
        position: relative;
        display: block;

        input {
            font: 18px Helvetica, Arial, sans-serif;
            box-sizing: border-box;
            border: 2px solid white;
            color: white;
            background: transparent;
            display: block;
            padding: 20px;
            width: 300px;
            height: 60px;
            margin-bottom: 20px;
            font-size: 18px;
            outline: none;
            transition: all 0.2s ease-in-out;

            &::placeholder {
                transition: all 0.2s ease-in-out;
                color: rgba(255, 255, 255, 0.6);
                font: 18px Helvetica, Arial, sans-serif;
            }

            &:focus,
            &:active {
                // border: 2px solid #1e5973;
                box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.4);
                color: rgba(255, 255, 255, 1);
            }

            &:focus,
            &:active,
            &.populated {
                padding-top: 28px;
                padding-bottom: 12px;

                &::placeholder {
                    color: transparent;
                }

                & + span {
                    opacity: 1;
                    top: 10px;
                }
            }
        }

        span {
            color: rgba(255, 255, 255, 0.6);
            font: 13px Helvetica, Arial, sans-serif;
            position: absolute;
            top: 0px;
            left: 20px;
            opacity: 0;
            transition: all 0.2s ease-in-out;
        }
    }

    input[type="submit"] {
        transition: all 0.2s ease-in-out;
        font: 18px Helvetica, Arial, sans-serif;
        border: none;
        background: #1aaf75;
        color: #fff;
        padding: 16px 40px;
        cursor: pointer;

        &:hover {
            background: #109f67;
        }
    }
    .error {
        color: #e3342f;
        font-size: 1.2em;
        margin: 2px 0 2px 0;
    }
}